I just installed the Audiolink PD2 in my '98 coupe and a Kenwood KSC-SW1 powered sub, a review of which is available
here Got mine on eBay for about $100 less than Crutchfield's selling them for.
I've been trying alternate locations and found that the Kenwood unit fits snugly in the bottom of the center bin of my coupe without brackets. You're not going to wake up the neighbors three blocks over with this one but it fills out the sound of the stock Bose system nicely, even with the top on the bin.